Brookfield DV2T - A.3 Setting the Gap

Brookeld Engineering Labs., Inc. Page 61 Manual No. M13-167
A.3 Setting the Gap
1. Movethetoggleswitchtotheright;thiswillturn
on(enable)theGapSettingFeature.ThePilot(red)
lightwillbeilluminated.
Note: The motor should be OFF.
2. Ifthecontactlight(yellow)isilluminated,turnthe
micrometeradjustmentringclockwise(asyoulook
downontheinstrument)untilthelightisnolonger
illuminated (see Figure A-5).
3. Iftheyellowcontactlightisnotilluminated,slowly
turn the micrometer adjustment ring in small
increments (one or two scale divisions) counter-
clockwise.
 Continuemovingthemicrometeradjustment ring
slowly counter-clockwise until the contact light
(yellow) rst turns on.  THIS IS THE “HIT
POINT.”
4. Adjusttheslidingreferencemarker,rightorleft,
totheclosestfullscaledivisionmark(see Figure
A-6).
5. Turn the micrometer adjustment ring one scale
divisiontothelefttomeetthelineonthesliding
reference marker. THE YELLOW CONTACT
LIGHT SHOULD GO OFF.
6. You have established the gap space needed for
measurement.  Now turn the toggle switch OFF
(left);theredpilotlightshouldgooff.
Theviscosityofelectricallyconductiveuids
maybeaffectedifreadingsaretakenwiththe
ElectronicGapSettingfeature“on”.Besureto
shutthefeature“off”beforetakingreadings!
7. Carefullyremovethesamplecup.
Note:
1. The cup may be removed and replaced without resetting the gap if the micrometer
adjustmentringhasnotbeenmoved.
2. Removethespindlefromtheviscometerwhencleaning.
3. Re-establishthehitpointeverytimethespindleisattached/detached.
Moves Away
from Hit Point
(clockwise)
LEFTx
Moves Towards
Hit Point
(counter-clockwise)
RIGHT
Full Scale
Division Marks
Sliding
Reference
Marker
Figure A-5
Figure A-6